Oyster-dredge winder



(No Model.)

A. D. POST. OYSTER DREDGE WINDER..-

Patented Apr. 25, 1893.

1133943161 cfllldllew .ZZBOSfi UNITED STATES PATENT OFFICE.

ANDREW DECKER POST, OF KEYPORT, NEW JERSEY.

OYSTER-DREDGE WINDER.

SPECIFICATION forming part of Letters Patent No. 496,061, dated April25, 1893.

Application filed January 11, 1893. Serial No. 458,052. (No model.)

To all whom, it may concern.-

Be it known that I, ANDREW DECKER Posr, a citizen of theUnited States,residing at Keyport, in the county of Monmouth and State of New Jersey,have invented a new and useful Oyster-Dredge Winder, of which thefollowing is a specification.

This invention relates to dredge winders; and it has for its object toprovide an improved winding device of this character especially adaptedfor use in connection with oyster dredges, and to this end it is themain object of this invention to do away with the cumbersome and heavyrope windlasses ordinarily employed in this connection, and substitute alight and simple hoisting device used in connection with chains insteadof rope, and also to combine therewith means for using rope ifnecessary.

With these and many other objects in view which will readily appear asthe nature of the invention is better understood, the same consists inthe novel construction, combination and arrangement of parts hereinaftermore fully described, illustrated and claimed.

In the accompanying drawings:-Figure 1 is a perspective view of a dredgewinder constructed in accordance with my invention. Fig. 2 is a verticaltransverse sectional view of the same. Fig. 3 is a vertical longitudinalsectional view of the same.

Referring to the accompanying drawings:- AArepresentthe sideframesupportingstandards which accommodate the various parts of thewinder, and are adapted to be suitably secured to the deck of the boatemployed or in any suitable location according to its use. Journaled inthe upperends of the side frame pieces is the horizontal winding shaftB. The said shaft carries the central clutch disk 0 securely keyedthereon and provided with the opposite inclined notches D, which areadapted to receive and accommodate the elongated friction rollers Emounted in said notches. Working over said clutch disk 0 and inclosingthe friction rollers E in the notches in said disk, is the chain wheelF. The said chain wheel F is provided on its periphery with a series oflink .recesses G, connected by the communicating slots H, which thusallow a chain to snugly fit in the periphery thereof,

and which chain will be hoisted or lowered according to the direction oftravel of said wheel. Loosely mounted on the shaft B on each side of thechain wheel F are the opposite cog wheels I. The said cog wheels areprovided with the opposite bearings e, which receive the oppositeprojecting ends of the opposite friction rollers E. Mounted loosely uponthe rod J secured in the side frame pieces A are the opposite weightedpawls K, which automatically engage the cog wheels I, and prevent thesame from turning backward. Secured to one end of the shaft B is therope spool or drum L, which in the event of the parting of the chainemployed, may be used, by winding a rope therearound and hoisting in theusual manner. Opposite crank handles M are connected to opposite ends ofthe shaft B and provide means for the turning of the same. It will nowbe readily seen that by passing a chain over the top of the chain wheelF, and allowing the same to fall upon the deck, while the other end isconnected with the dredge, and by turning the said shaft in onedirection, that the notched clutch disk will turn away from the frictionrollers E working in the notches therein and cause the same tofrictionally engage the inner wall of the chain wheel working thereover,and carry the same around and cause the dredge to be hoisted. By simplystopping the turning of the shaft, the weighted pawls will check thebackward movement of the cog wheels, which will hold the frictionrollers steady until the same fall back into the'inclined notches, andthus automatically release the chain wheel and allow the dredge to lowerof itself. This operation is particularly essential in devices of thischaracter to allow the dredge to be repeatedly and successively droppedback into the water for cleaning the oysters, which is easily donewithout any strain or jar upon the men operating the winder.

The construction of winder herein described greatly lessens the labornecessary for operating the ordinary dredge winders, and inasmuch as thechain is closely geared with the device, a continued and equal power isexerted from the time the dredge starts from the bottom until it reachesthe deck. The ordinary spool ordrum winder loses its power as the dredgestarts from the bottom, and when the dredge reaches thetop of the waterthe spool or drum is full of rope and the leverage power is consequentlysmall, necessitating extra labor to haul the dredge on deck. As noted,the herein described winder is particularly adapted for washing oystersin a manner described by successively tripping the dredge. drops itselfand is easily caught without any undue jar or strain. The said winderalso occupiesbut a-small space and gives a better opportunity for thesame to be worked.

It is to be understood that changes in the form, proportion and theminor details of construction may be resorted to without departing fromthe principle or sacrificing any of the advantages of this invention.

Having thus described my invention, what The winder is so geared that ita supportingframe, of adrive shaft journaled in the upper ends of saidframe, a central clutch disk mounted upon said shaft'and provided withopposite inclined notches, a chain wheel loosely fitted over said clutchdisk, cog wheels loosely mounted on. said shaft on 0pposite sides ofsaid chain wheel, opposite fric- 4o tionrollers working in said inclinednotches and having their ends loosely connected with the cog wheels,weighted automatic pawls engaging said cog wheels, and a supplementalropespool or drum mounted upon one end of said shaft, substantially asset forth.

3. In a'dredge'winder, the combination, with a supporting frame, ofadrive shaft journaled in the said frame, a clutch disk mounted uponsaid shaft and provided with opposite inclined notches, a chain wheelloosely fitted over said clutch disk, cog wheels iloosely mountedionsaid shaft on oppositesides of said chain wheel, opposite frictionrollers working in said inclinednotchesandhaving their ends looselyconnected with the cog wheels, and weighted automaticpawls engaging saidcog wheels, substantially as set forth.

'Intesti-mony that-Lclaimthe foregoing as my own'I haveheretoah'iX-cldimy signature in the presence of twowitnesses.

ANDREW ,DECKER (POST.

Witnesses:

A. H. BEDLE, WM. BEDLE.

